content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.observable.internal.operators;
  
  import java.util.concurrent.atomic.AtomicBoolean;
  
  import io.reactivex.common.*;
  import io.reactivex.common.internal.disposables.DisposableHelper;
  import io.reactivex.observable.*;
  
  public final class ObservableUnsubscribeOn<T> extends AbstractObservableWithUpstream<T, T> {
      final Scheduler scheduler;
      public ObservableUnsubscribeOn(ObservableSource<T> source, Scheduler scheduler) {
          super(source);
          this.scheduler = scheduler;
      }
  
      @Override
      public void subscribeActual(Observer<? super T> t) {
          source.subscribe(new UnsubscribeObserver<T>(t, scheduler));
      }
  
      static final class UnsubscribeObserver<T> extends AtomicBoolean implements Observer<T>, Disposable {
  
          private static final long serialVersionUID = 1015244841293359600L;
  
          final Observer<? super T> actual;
          final Scheduler scheduler;
  
          Disposable s;
  
          UnsubscribeObserver(Observer<? super T> actual, Scheduler scheduler) {
              this.actual = actual;
              this.scheduler = scheduler;
          }
  
          @Override
          public void onSubscribe(Disposable s) {
              if (DisposableHelper.validate(this.s, s)) {
                  this.s = s;
                  actual.onSubscribe(this);
              }
          }
  
          @Override
          public void onNext(T t) {
              if (!get()) {
                  actual.onNext(t);
              }
          }
  
          @Override
          public void onError(Throwable t) {
              if (get()) {
                  RxJavaCommonPlugins.onError(t);
                  return;
              }
              actual.onError(t);
          }
  
          @Override
          public void onComplete() {
              if (!get()) {
                  actual.onComplete();
              }
          }
  
          @Override
          public void dispose() {
              if (compareAndSet(false, true)) {
                  scheduler.scheduleDirect(new DisposeTask());
              }
          }
  
          @Override
          public boolean isDisposed() {
              return get();
          }
  
          final class DisposeTask implements Runnable {
              @Override
              public void run() {
                  s.dispose();
              }
          }
      }
  }
  